| // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef CHROME_BROWSER_SYNC_GLUE_BROWSER_THREAD_MODEL_WORKER_H_ |
| #define CHROME_BROWSER_SYNC_GLUE_BROWSER_THREAD_MODEL_WORKER_H_ |
| |
| #include "base/basictypes.h" |
| #include "base/callback_forward.h" |
| #include "base/compiler_specific.h" |
| #include "content/public/browser/browser_thread.h" |
| #include "sync/internal_api/public/engine/model_safe_worker.h" |
| #include "sync/internal_api/public/util/syncer_error.h" |
| |
| namespace base { |
| class WaitableEvent; |
| } |
| |
| namespace browser_sync { |
| |
| // A syncer::ModelSafeWorker for models that accept requests from the |
| // syncapi that need to be fulfilled on a browser thread, for example |
| // autofill on the DB thread. |
| // TODO(sync): Try to generalize other ModelWorkers (e.g. history, etc). |
| class BrowserThreadModelWorker : public syncer::ModelSafeWorker { |
| public: |
| BrowserThreadModelWorker(content::BrowserThread::ID thread, |
| syncer::ModelSafeGroup group, |
| syncer::WorkerLoopDestructionObserver* observer); |
| |
| // syncer::ModelSafeWorker implementation. Called on the sync thread. |
| virtual void RegisterForLoopDestruction() OVERRIDE; |
| virtual syncer::ModelSafeGroup GetModelSafeGroup() OVERRIDE; |
| |
| protected: |
| virtual ~BrowserThreadModelWorker(); |
| |
| virtual syncer::SyncerError DoWorkAndWaitUntilDoneImpl( |
| const syncer::WorkCallback& work) OVERRIDE; |
| |
| // Marked pure virtual so subclasses have to override, but there is |
| // an implementation that subclasses should use. This is so that |
| // (subclass)::CallDoWorkAndSignalTask shows up in callstacks. |
| virtual void CallDoWorkAndSignalTask( |
| const syncer::WorkCallback& work, |
| base::WaitableEvent* done, |
| syncer::SyncerError* error) = 0; |
| |
| private: |
| content::BrowserThread::ID thread_; |
| syncer::ModelSafeGroup group_; |
| |
| DISALLOW_COPY_AND_ASSIGN(BrowserThreadModelWorker); |
| }; |
| |
| // Subclass BrowserThreadModelWorker so that we can distinguish them |
| // from stack traces alone. |
| |
| class DatabaseModelWorker : public BrowserThreadModelWorker { |
| public: |
| explicit DatabaseModelWorker(syncer::WorkerLoopDestructionObserver* observer); |
| |
| protected: |
| virtual void CallDoWorkAndSignalTask( |
| const syncer::WorkCallback& work, |
| base::WaitableEvent* done, |
| syncer::SyncerError* error) OVERRIDE; |
| |
| private: |
| virtual ~DatabaseModelWorker(); |
| }; |
| |
| class FileModelWorker : public BrowserThreadModelWorker { |
| public: |
| explicit FileModelWorker(syncer::WorkerLoopDestructionObserver* observer); |
| |
| protected: |
| virtual void CallDoWorkAndSignalTask( |
| const syncer::WorkCallback& work, |
| base::WaitableEvent* done, |
| syncer::SyncerError* error) OVERRIDE; |
| |
| private: |
| virtual ~FileModelWorker(); |
| }; |
| |
| } // namespace browser_sync |
| |
| #endif // CHROME_BROWSER_SYNC_GLUE_BROWSER_THREAD_MODEL_WORKER_H_ |